/* =========================================================
   INSTABIOMINT — DESIGN TOKENS
   Palette: mint (brand) / ink (text) / cream (surface) / coral (action) / gold (highlight)
   Type: system font stack only — zero external font requests, zero render-blocking
   font swap, instant text paint. This is the single biggest lever for LCP/CWV
   on a content site, so no webfont is loaded at all. */
:root{
  --mint-50:  #EAFBF4;
  --mint-200: #A9EFD4;
  --mint-500: #12B886;
  --mint-600: #0D9C71;
  --mint-700: #0B7A5B;
  --ink-900:  #0E1B17;
  --ink-700:  #2A3B36;
  --ink-500:  #5B6D67;
  --cream-50: #FBFAF5;
  --cream-100:#F3F0E7;
  --coral-500:#FF6F59;
  --coral-600:#E85A45;
  --gold-400: #F2C14E;
  --line:     #E4E0D3;
  --white:    #FFFFFF;

  --font-display: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Consolas", "Liberation Mono", monospace;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --shadow-card: 0 1px 2px rgba(14,27,23,.04), 0 8px 24px rgba(14,27,23,.06);
  --container: 1160px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
}
body{
  margin:0;
  background:var(--cream-50);
  color:var(--ink-900);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--mint-700);text-decoration:none;}
a:hover{color:var(--coral-600);}
:focus-visible{outline:3px solid var(--mint-500);outline-offset:2px;border-radius:4px;}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.15;
  color:var(--ink-900);
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
h1{font-size:clamp(2.1rem,4vw + 1rem,3.4rem);font-weight:700;}
h2{font-size:clamp(1.5rem,2vw + 1rem,2.1rem);margin-top:2.2em;}
h3{font-size:1.25rem;}
p{margin:0 0 1.1em;}

.container{max-width:var(--container);margin-inline:auto;padding-inline:20px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:.72rem;text-transform:uppercase;
  letter-spacing:.14em;color:var(--mint-700);
  background:var(--mint-50);border:1px solid var(--mint-200);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--coral-500);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-weight:600;font-size:.95rem;
  padding:13px 22px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:active{transform:scale(.97);}
.btn-primary{background:var(--ink-900);color:var(--white);}
.btn-primary:hover{background:var(--mint-700);color:var(--white);}
.btn-accent{background:var(--coral-500);color:var(--white);}
.btn-accent:hover{background:var(--coral-600);color:var(--white);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-900);}
.btn-ghost:hover{border-color:var(--mint-500);color:var(--mint-700);}
.btn-copy{
  font-family:var(--font-mono);font-size:.8rem;padding:8px 14px;border-radius:8px;
  background:var(--ink-900);color:var(--mint-200);
}
.btn-copy.is-copied{background:var(--mint-600);color:var(--white);}

/* ---------- Site header ---------- */
.site-header{
  position:sticky;top:0;z-index:40;
  background:var(--cream-50);
  border-bottom:1px solid var(--line);
}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;padding-block:14px;}
.site-logo{font-family:var(--font-display);font-weight:700;font-size:1.3rem;color:var(--ink-900);display:flex;align-items:center;gap:8px;}
.site-logo span{color:var(--mint-600);}
.primary-nav ul{list-style:none;display:flex;gap:26px;margin:0;padding:0;}
.primary-nav a{color:var(--ink-700);font-weight:500;font-size:.95rem;}
.nav-toggle{display:none;}
@media (max-width:860px){
  .primary-nav{display:none;}
  .nav-toggle{display:inline-flex;}
}

/* ---------- Hero / phone mockup (signature element) ---------- */
.hero{padding-block:56px 40px;}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
@media (max-width:900px){.hero__grid{grid-template-columns:1fr;}}
.hero h1{margin-bottom:.35em;}
.hero__lede{font-size:1.15rem;color:var(--ink-700);max-width:46ch;margin-bottom:1.6em;}
.hero__ctas{display:flex;gap:12px;flex-wrap:wrap;}

.phone{
  --phone-w:280px;
  width:var(--phone-w);margin-inline:auto;
  border:10px solid var(--ink-900);border-radius:40px;
  background:var(--white);box-shadow:var(--shadow-card);
  padding:18px 16px 26px;position:relative;
}
.phone::before{
  content:"";position:absolute;top:8px;left:50%;translate:-50% 0;
  width:70px;height:8px;border-radius:6px;background:var(--ink-900);
}
.phone__avatar{width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--mint-500),var(--gold-400));margin:18px auto 10px;}
.phone__handle{text-align:center;font-weight:700;font-size:.9rem;}
.phone__bio{
  font-family:var(--font-mono);font-size:.82rem;text-align:center;color:var(--ink-700);
  min-height:3.6em;padding-inline:10px;margin-top:8px;
}

/* ---------- Sections / cards ---------- */
.section{padding-block:44px;}
.section__head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:22px;flex-wrap:wrap;}
.section__head h2{margin-top:0;}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;}
.post-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:18px;box-shadow:var(--shadow-card);transition:transform .15s ease, border-color .15s ease;
  display:flex;flex-direction:column;gap:10px;
}
.post-card:hover{transform:translateY(-3px);border-color:var(--mint-500);}
.post-card__cat{font-family:var(--font-mono);font-size:.7rem;color:var(--mint-700);text-transform:uppercase;letter-spacing:.08em;}
.post-card h3{margin:0;font-size:1.08rem;}
.post-card h3 a{color:var(--ink-900);}
.post-card p{color:var(--ink-500);font-size:.92rem;margin:0;}

.category-pill{
  display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:999px;
  background:var(--white);border:1px solid var(--line);font-size:.88rem;font-weight:600;color:var(--ink-700);
}
.category-pill:hover{border-color:var(--mint-500);color:var(--mint-700);}
.category-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- Generator tool widget ---------- */
.tool-widget{
  background:var(--ink-900);color:var(--white);border-radius:var(--radius-lg);
  padding:28px;margin-block:32px;
}
.tool-widget h2, .tool-widget h3{color:var(--white);}
.tool-widget__controls{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px;}
@media (max-width:640px){.tool-widget__controls{grid-template-columns:1fr;}}
.tool-widget select, .tool-widget textarea, .tool-widget input[type=text]{
  width:100%;font-family:var(--font-body);font-size:.95rem;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  color:var(--white);border-radius:10px;padding:11px 13px;
}
.tool-widget__output{
  background:rgba(255,255,255,.06);border:1px dashed rgba(255,255,255,.25);
  border-radius:12px;padding:16px;font-family:var(--font-mono);font-size:.98rem;
  min-height:60px;white-space:pre-wrap;word-break:break-word;
}
.tool-widget__actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line);padding-block:14px;}
.faq-item summary{cursor:pointer;font-weight:600;display:flex;justify-content:space-between;gap:12px;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--mint-600);font-size:1.3rem;}
.faq-item[open] summary::after{content:"–";}
.faq-item p{color:var(--ink-700);margin-top:10px;}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{font-size:.82rem;color:var(--ink-500);margin-bottom:18px;}
.breadcrumbs a{color:var(--ink-500);}
.breadcrumbs a:hover{color:var(--mint-700);}

/* ---------- Single post ---------- */
.single-post{padding-block:36px 60px;}
.single-post__inner{max-width:760px;margin-inline:auto;}
.post-meta{font-family:var(--font-mono);font-size:.78rem;color:var(--ink-500);margin-bottom:6px;}
.entry-content h2{border-top:1px solid var(--line);padding-top:.7em;}
.entry-content ul{padding-left:1.2em;}
.entry-content blockquote{
  border-left:3px solid var(--mint-500);margin:1.6em 0;padding:.2em 1.2em;
  font-family:var(--font-display);font-size:1.15rem;color:var(--ink-700);
}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);color:var(--mint-50);margin-top:60px;padding-block:44px 26px;}
.site-footer a{color:var(--mint-50);opacity:.85;}
.site-footer a:hover{opacity:1;color:var(--mint-200);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px;margin-bottom:30px;}
@media (max-width:780px){.footer-grid{grid-template-columns:1fr 1fr;}}
.footer-grid h4{color:var(--white);font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;font-family:var(--font-mono);}
.footer-grid ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:.9rem;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;font-size:.82rem;opacity:.7;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}

/* ---------- Utility ---------- */
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink-900);color:var(--white);padding:10px 16px;z-index:100;}
.skip-link:focus{left:12px;top:12px;}